MIL-PRF-83282-1997MIL-PRF-87257-2004SAE J 2470-2009SAE ARP 490SAE ARP 1281SAE ARP 1383SAE ARP 4386SAE AS 1241SAE AS 4059SAE AS 4536SAE AS 4941-1998SAE AS 5440-1998
This SAE Aerospace Recommended Practice (ARP) is intended as a guide to aid in the specification and testing of Direct Drive Servovalves, but does not include the associated electronic controller. The recommendations contained in this ARP are primarily confined to the input and output characteristics of Direct Drive Servovalves (DDV). The only exception to this approach involves the definition and specification of chip shear force, which is not typically measurable by nondestructive external testing. The information presented should be useful in standardizing the terminology, the specification of physical and performance parameters, and the test procedures